[MapProxy] Transparent Tile Cache over Tile Server

[Oliver Tonnhofer]

Hi,

you need to 'mark' your tile source as transparent:
https://mapproxy.org/docs/nightly/configuration_examples.html#merge-tile-sources


Regards,
Oliver

-- 
Oliver Tonnhofer  | Omniscale GmbH & Co KG  | https://omniscale.com
OpenStreetMap WMS and tile services         | https://maps.omniscale.com







> On 30. Jul 2018, at 20:37, Greg Albrecht <gba at gregalbrecht.com> wrote:
> 
> Hi All,
> 
> I'm trying to use a Special-Event PDF as a transparent layer overlay for an existing OSM Tile Source. I've already used MapTiler to split the PDF into the appropriate tiles and can export them as a TMS directory structure or as a mbtiles file. 
> 
> If I use a tile server to host the Special-Event tiles and use a combined cache to provide a layer to my web browser (via WMTS), the Special-Event tiles are transparent and I can see all the way through to the underlying OSM tiles.
> 
> Config: https://gist.github.com/ampledata/c60602300ea02adb744b216a0b21439a
> 
> If I use a local TMS file cache to host the Special-Event tiles and use a combined cache to provide a layer to my web browser (via WMTS), I can ONLY see the Special-Event tiles and I cannot see the underlying OSM tiles:
> 
> Config: https://gist.github.com/ampledata/e81f8848d92621774e0cb2d3973edb64
> 
> I'd prefer using a local TMS file cache to host the Special-Event tiles, and have them be transparent on top of the externally hosted OSM tiles. I appreciate any pointers on what might be wrong with my config.
> 
> The tile files themselves are: "PNG image data, 256 x 256, 8-bit colormap, non-interlaced"
> 
> Thanks,
> -g
> 
> 
> -- 
> Greg Albrecht <gba at gregalbrecht.com> W2GMD
> EMT, Emergency & Disaster Communications Supervisor
> Mobile: 1-415-598-8226
> http://ampledata.org/
> http://twitter.com/ampledata
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